package com.shadowtorcher.soulknife.tableManager;
/*
 * Copyright (C)  li, Shadow Torcher project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import com.shadowtorcher.soulknife.util.Connecter;
import com.shadowtorcher.soulknife.util.Logger;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class SQLManager {
    private static final int QUERY = 1;
    private static final int ELSE = 0;

    public static boolean haveTable(String name) throws SQLException {
        return SQLManager.runQuery("SHOW TABLES LIKE ?", name).next();
    }

    public static boolean runSQL(String sql, Object... objects) throws SQLException {
        PreparedStatement preparedStatement = Connecter.getConnection().prepareStatement(sql);
        for (int i = 1; i <= objects.length; i++) {
            preparedStatement.setObject(i, objects[i - 1]);
        }
        return (Boolean) run(ELSE, preparedStatement);
    }

    public static ResultSet runQuery(String sql, Object... objects) throws SQLException {
        PreparedStatement preparedStatement = Connecter.getConnection().prepareStatement(sql);
        for (int i = 1; i <= objects.length; i++) {
            preparedStatement.setObject(i, objects[i - 1]);
        }
        return (ResultSet) run(QUERY, preparedStatement);
    }

    private static synchronized Object run(int type, PreparedStatement preparedStatement) throws SQLException {
        Logger.logD(preparedStatement.toString());
        if (type == QUERY)
            return preparedStatement.executeQuery();
        else
            return preparedStatement.execute();
    }
}
